154556151 has 4 divisors (see below), whose sum is σ = 206074872. Its totient is φ = 103037432.

The previous prime is 154556131. The next prime is 154556189. The reversal of 154556151 is 151655451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151655451 = 3 ⋅50551817.

It is a cyclic number.

It is not a de Polignac number, because 154556151 - 2⁵ = 154556119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154556131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25759356 + ... + 25759361.

It is an arithmetic number, because the mean of its divisors is an integer number (51518718).

Almost surely, 2^154556151 is an apocalyptic number.

154556151 is a deficient number, since it is larger than the sum of its proper divisors (51518721).

154556151 is an equidigital number, since it uses as much as digits as its factorization.

154556151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51518720.

The product of its digits is 15000, while the sum is 33.

The square root of 154556151 is about 12432.0614139410. The cubic root of 154556151 is about 536.6553104259.

The spelling of 154556151 in words is "one hundred fifty-four million, five hundred fifty-six thousand, one hundred fifty-one".